C. Aa demonstrates a heterozygous dominant trait.
What is a heterozygous dominant trait?A heterozygous dominant trait is a genetic trait that is determined by the presence of two different alleles, one dominant and one recessive, in an individual's genotype. The dominant allele will express its effect, determining the phenotype (observable traits) of the individual, while the recessive allele has no visible effect.
For example, if the dominant allele for a certain trait codes for the production of a functional protein and the recessive allele codes for a non-functional protein, the heterozygous individual will express the functional protein and display the dominant trait.
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Which major processes were needed for the origin of life on earth?
A. Abundance of oxygen and the ozone layer
B. Active volcanoes and very cold temperatures
C. Low levels of ultraviolet radiation and specific mixture of gases
D. Organic molecules produced from spontaneous synthesis or from meteorites
Answer:
The answer is D. Organic molecules produced from spontaneous synthesis or from meteorites
Explanation:
A long time ago many meteorites would hit the Earth and these space rocks had many different Organic molecules which then later started life. Although many of the options helped this process they were not necessary which is what the quiz is asking you.
Hope This Helps!
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Organic molecules are produced from spontaneous synthesis or from meteorites.
What is the first major event on how life originated on Earth?The earliest life forms we know of were microscopic organisms (microbes) that left signals of their presence in rocks about 3.7 billion years old. The signals consisted of a type of carbon molecule that is produced by living things.
What are the possible scientific explanations of the origin of life on Earth?Many scientists favor the RNA world hypothesis, in which RNA, not DNA, was the first genetic molecule of life on Earth. Other ideas include the pre-RNA world hypothesis and the metabolism-first hypothesis.
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which of the following terms would Bb represent in an organism?
A.phenotype
B.genotype
C.genetics
Answer:
the answer is genotype
Select the appropriate term to complete the sentences below. A is a natural material used by humans that cannot be replaced. A is a natural material used by humans that can be replace
Answer:
non renewable and renewable
Explanation:
Answer:
nonrenewable, renewable
Explanation:
Which u.S. State lists the horned toad as its state reptile?
Answer:
State of Texas
Explanation:
Answer:
The state of Wyoming has the state reptile as a horned toad, Texas's state reptile is the horned lizard.
Based on what you know about the location of the earth in relation to the sun, why is this called the Goldilocks zone in other galaxies? A. It's an area that doesn't experience any major weather events that could cause mass extinctions. B. It's an area that's an optimal distance from the sun for potentially supporting life. C. It's a region that's unaffected by asteroid or meteor impacts. D. It's a region that exhibits a weak gravitational pull, thus maintaining a safe distance from the sun.
Answer:
B
Explanation:
The distance of the Goldilocks zone ensures that water on the terrestrial planet is maintained in the liquid phase. This is because the distance from the star ensure it receives enough sunlight to keep the planet warm but not too hot that the water exists as vapor. Water in its liquid form is essential for maintaining life like here on earth.
If you have a hamster with short fur, what possible genotypes could the hamster have?
Answer:
It would be Ff and FF
Explanation:
if an individual inherits a D from its mother and a d from its father how would we classify the individual?
A.homozygous
B.dominant
C.heterozygous
If an individual inherits a D from his mother and a d from his father. The individual will be classified as heterozygous. The correct option is C.
What is heterozygous?Heterozygous means having different alleles. It is a term of genetics. When a person for a character contains two different genes, then it's called heterozygous. For example, having red color and brown color hair allele.
Here the individual has a D and d, which means two different alleles are present, so it is heterozygous.
Dd, Heterozygous.
DD, Homozygous dominant.
dd, Homozygous recessive.
Thus, option C. heterozygous is correct regarding the individual.
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During which phase of mitosis do the nuclear membrane
Answer:
Telophase
Explanation:
During Telophase of mitosis, the nuclear membrane forms.
What is the amount of heat required to raise the temperature of water referred to as? A. Heat of vaporization B. Specific heat C. Heat of combustion
Answer:
B )specific heat is your answer.
The intercellular material that holds plant cells together 1 cell cement 2. A septum which forms to separate the two new plant cells r-RNA 3. Material which makes up the structure of the cell wall centrioles 4. play a role in the formation of the spindle during cell division 2 cell plate 5. Serves to trap the sun's energy for photosynthesis cleavage furrow 6. A packet of chlorophyll arranged in stacks within a plant cell 16 secretion 7. The pinching in of the animal cell during cell division gametes 8. The new cells resulting from the division of the mother cell endoplasmic reticulum 9. channels for transporting molecules within the cell spindle 10. The reproductive cells in sexual reproduction chloroplast 11. Involved in producing and packaging secretions Golgi bodies 12. The process involving the division of the nucleus in a reproductive cell chlorophyll 13. The process involving the division of the nucleus of a body cell 3 cellulose 14. The cell that is about to undergo binary fission mother cell 15. Makes up the structure of the ribosomes meiosis 16. Substances produced by the Golgi bodies mitosis 17. The fibers which direct the even distribution of chromosomes daughter cell
Answer:
1. The intercellular material that holds plant cells together (Cell Cement)
2. A septum which forms to separate the two new plant cells (Cell plate)
3. Material which makes up the structure of the cell wall (Cellulose)
4. play a role in the formation of the spindle during cell division (Centrioles)
5. Serves to trap the sun's energy for photosynthesis (Chlorophyll)
6. A packet of chlorophyll arranged in stacks within a plant cell (Chloroplast)
7. The pinching in of the animal cell during cell division (Cleavage furrow)
8. The new cells resulting from the division of the mother cell (Daughter cells)
9. channels for transporting molecules within the cell (Endoplasmic reticulum)
10. The reproductive cells in sexual reproduction (Gametes)
11. Involved in producing and packaging secretions (Golgi Bodies)
12. The process involving the division of the nucleus in a reproductive cell (Meiosis)
13. The process involving the division of the nucleus of a body cell (Mitosis)
14. The cell that is about to undergo binary fission (Mother cell)
15. Makes up the structure of the ribosomes (rRNA)
16. Substances produced by the Golgi bodies (Secretions)
17. The fibers which direct the even distribution of chromosomes (Spindle)
Explanation:
Plant cells: (1,3,5,6)
Plant cells differ from animal cells in several ways.
Cell wall: One of the most defining one is plant cells have cell walls. These cell walls are rigid and they cover the plasma membrane of the plant cell. Cell walls have 3 layers and the outermost one is called the middle lamella, which is the cell cement. It acts like a cement because it is what holds one plant cell and the adjacent cells together. The middle lamella is made up of pectin.
The cell wall also has layers made up of cellulose, which happens to be a macromolecule as is the most abundant of its kind on Earth. They form bundles called microfibrils.
Chlorophyll: Chlorophyll are molecules found in plant cells that play a role in food production in plants. Chlorophyll absorbs sunlight which is used in the process of food making called photosynthesis, along with other elements like water and carbon dioxide. Also chlorophyll gives the green pigmentation of plants.
Chloroplast: Chlorophyll are encased in an organelle called chloroplast. Chloroplasts are where photosynthesis takes place. They are found in the leaves of plants. Because they use chlorophyll, the are also green.
Other parts of a cell: (4, 9,11.15, 16, 17)
Both plant and animal cells also have similar organelles.
Endoplasmic Reticulum (ER): There are two types: smooth endoplasmic reticulum(SER); and rough endoplasmic reticulum(RER). The SER acts like a storage unit for lipids and steroids. They also help in the production as well. RER is a pckaging and synthesis area. It is rough because they have ribosomes on them.
Ribosomes: Ribosomes are small organelles in the cell that are partly made up of rRNA or ribosomal RNA. They play an important role in protein synthesis. They help translate the DNA code that the mRNA transcribed to determine what type of protein will be formed.
Golgi Apparatus: Also known as the golgi complex, is an organelle in the cell that serves as a sorting and packaging area. It collects simple molecules and packages them into more complex molecules which would be stored if the cell would need it, or it will be sent out of the cell. These complex molecules are packed into vesicles. A transition vesicle is made from the protein in the ER is transported to the golgi apparatus, which then processes its contents. It then releases a secretory vesicle, that is then brought to the cell membrane.
Centrioles: Centrioles are small, cylinder-shaped organelles that aid in cell division. They are made up of the protein, tubulin. These centrioles produce spindles or spindle fibers that pull on the chromosomes during cell division and split them up.
(CONTINUED IN THE ATTACHMENT)
Answer:
1. Cell cement-The intercellular material that holds plant cells together
2. Cell plate-A septum which forms to separate the two new plant cells
3. Cellulose-Material which makes up the structure of the cell wall
4. Centrioles-play a role in the formation of the spindle during cell division
5. chlorophyll-Serves to trap the sun's energy for photosynthesis
6. Chloroplast-A packet of chlorophyll arranged in stacks within a plant cell
7. Cleavage Furrow-The pinching in of the animal cell during cell division
8. Daughter Cells- The new cells resulting from the division of the mother cell
9. Endoplasmic reticulum-channels for transporting molecules within the cell
10. Gametes-The reproductive cells in sexual reproduction
11. Golgi bodies-Involved in producing and packaging secretions
12. Meisos-The process involving the division of the nucleus in a reproductive cell
13. Mitosis-The process involving the division of the nucleus of a body cell )
14. Mother cell-The cell that is about to undergo binary fission
15. RNA-Makes up the structure of the ribosomes
16. Mother cell-Substances produced by the Golgi bodies
17. Spindle-The fibers which direct the even distribution of chromosomes
Explanation:
which of the following allele pairs demonstrate a heterozygous dominant trait?
A.aa
B.AA
C.Aa
D.AB
The allele pair that demonstrates a heterozygous dominant trait is C. Aa. Recessive traits are observed in individuals that are homozygous (aa) and the AB blood type in ABO blood groups is an example of multiple alleles and codominance.
The allele pair that demonstrates a heterozygous dominant trait is C. Aa. Heterozygous means having two different alleles for a single trait, where one allele is dominant and the other is recessive. The capital letter 'A' represents the dominant allele and the lowercase letter 'a' represents the recessive allele. Therefore, an organism with the Aa genotype expresses the dominant phenotype.
A recessive trait will be observed in individuals that are C. homozygous. This means they have two copies of the recessive allele (aa).
When considering ABO blood groups, if a heterozygous blood type A parent (IAi) and a heterozygous blood type B parent (IBi) mate, one quarter of their offspring are expected to have the AB blood type (IAIB) where both the A and B alleles are expressed equally. This is an example of d. multiple alleles and codominance.
Scientific evidence is most likely to be consistent if it is based on data from
Scientific evidence is most likely to be consistent if it is based on reliable and accurate data obtained through controlled experiments or observations.
Explanation:
Scientific evidence is most likely to be consistent if it is based on reliable and accurate data obtained through controlled experiments or observations. These experiments or observations should be conducted using proper scientific methods and adhere to accepted standards of research.
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During prohinition to obtain liquor illegally, drinkers went underground to hidden nightclubs know as
Answer
Speakeasies
Explanation:
Utilizing ultisols for agriculture requires _______. a. extensive irrigation b. fertilizer to balance the high alkalinity of the soil c. adding organic matter to supplement the shallow horizons d. fertilizer to replace nutrients that leach from the soil
Answer:
fertilizer to replace nutrients that leach from the soil
Choice D is correct
Explanation:
Utilizing ultisols for agriculture requires fertilizer to replace nutrients that leach from the soil
Kerry is conditioned to fear strawberries. Raspberries are similar to strawberries, and even though no attempt was made to make Kerry fear raspberries, she reacts with fear when she sees them. This is an example of ________.A) imitation B) modeling C) stimulus discrimination D) stimulus generalization
Answer:
The correct option is D, STIMULUS GENERALIZATION.
Explanation:
Stimulus generalization refers to the conditioning process in which a conditioned stimulus evokes a similar response after it has been conditioned. A stimulus generalization is said to occur when a living organism responds to a stimulus in the same manner it responds to a similar stimulus. This typically occur as a result of classical conditioning.
Since Kerry is responding to raspberries the same way it responds to strawberries, which it has been condition to fear, we can conclude that Kerry is experiencing stimulus generalization.
This is an example of Stimulus generalization. So, the correct option is D.
What is Stimulus generalization?Stimulus generalization is the tendency of a new stimulus to evoke responses or behaviors similar to those elicited by another stimulus.
Stimulus generalization occurs when a stimulus that is similar to an already conditioned stimulus begins to produce the same response as the original stimulus does.
Here, Kerry feared with strawberry, but not with raspberry. Therefore, a conditioned stimulus is provided in order to evoke the original stimulus.
Thus, this is an example of Stimulus generalization.
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Jeremy is conducting an experiment and has just made an educated guess as to what will happen in the experiment. Which step of the scientific method is this? A. Identifying variables B. Analyzing data C. Stating the problem D. Making a hypothesis
Answer: Option (D) is the correct answer.
Explanation:
A hypothesis is defined as an educated guess with the help of which an individual might predict what would happen in a certain experiment or situation.
When we evaluate some data with the help of analytical and reasoning approach then it is known as analyzing data.
Stating the problem means defining the problem so that others can also get to known the problem.
Therefore, we can conclude that when Jeremy is conducting an experiment and has just made an educated guess as to what will happen in the experiment then making a hypothesis is the step of the given scientific method.
Name the branch of medicine concerned with digestive diseases?
Answer: Gastroenterology
Explanation: Gastroenterology is a branch of medicine concerned with digestive diseases. The practice of gastroenterology concentrates on the diagnosis and treatment of diseases involving the esophagus, stomach, small intestine, and large intestine (colon), liver, and pancreas. Examples of conditions treated: Abdominal pain.
Gastroenterology is the branch of medicine specifically focused on diagnosing and treating disorders and diseases that affect the digestive system, including a broad range of conditions from ulcers and gastroparesis to more serious diseases like cancer.
Explanation:The branch of medicine that is concerned with digestive diseases is called Gastroenterology. This medical specialty deals with a wide range of conditions and diseases that affect the digestive organs and can occur with different frequencies as you age. Some of these pathologies include hiatal hernia, gastritis, peptic ulcer disease, duodenal ulcers, maldigestion, malabsorption, hemorrhoids, diverticular disease, constipation, jaundice, acute pancreatitis, cirrhosis, and gallstones. Each of these conditions directly influences the function of the digestive system and could critically affect a person's overall state of health.
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Hairs that clean dirt out of the air in your nasal passages are called:
A. sinus
B. trachea
C. cilia
D. mucus
Answer:
Explanation:
c
Carbon dioxide is excreted from the body by the
a. kidneys
b. skin
c.lungs
d.liver
Carbon dioxide releases from the body by the lungs.
Option: C
Explanation:
Lungs are the respiratory organs of the body. They help in the gaseous exchange of "carbon dioxide" to the atmospheric oxygen. The carbon dioxide released from the tissue as an end product of the "citric acid cycle" and dissolves in the blood in the form of bicarbonate Ion or simply bind with hemoglobin molecule of the RBC. During circulation when the blood is pumped into the lungs then the carbon dioxide is released from the lungs and oxygen is inhaled.
A student from one of the research labs is having trouble preparing a slide for examination and photographing. The bacterial slide that he has brought to you was prepared using a commercially purchased stain. He has asked for your help in determining what he is doing wrong so that he can change the lab protocols and continue on with his project. After examining the slide under oil immersion, you determine that no bacteria are present even though the student is able to show you the culture he used to make that slide that has visible growth in the liquid medium.Which of the following statements does NOT explain the fact that there are no bacteria present on the student's slide?
Rinsing with alcohol during the washing step stripped the bacteria off the glass slide.
By not allowing a glass slide to completely air dry before heat fixation, the flame will cause the surrounding water to boil and this will damage the bacterial cell.
Overheating during the fixation step boiled the water within the bacterial cells and resulted in the cells bursting.
Insufficient heating of the slide did not drive out the thin layer of water and this resulted in minimal bonding between the bacteria and the glass slide.
Answer:
The side bloops to the left
Explanation:
It's a right angle
1. Mendel observed that pea plants had traits, such as color, that were either “one or the other,” never something in between. Discuss the correlation between Mendel’s factors, what they might be, and why pea plant traits come in one form or another—e.g., gray or dark red—rather than blended.
Answer: because a trait is either dominat or recessive and they can't both show at the same time. Even if both are present only 1 will show: homozygous dominate(AA), heterzygous(Aa), or homozygous recessive(aa).
Answer:
The trait may be dominant or recessive.
Explanation:
Mendel worked on the pea plant (Pisum sativum) . Mendel is known as the "Father of Genetics".
Monohybrid cross of pea plant demonstrated the law of dominance. According to this law, in a pair of contrasting trait one trait which can express itself among the trait and hides the expression of other trait. This trait which can express itself is known as dominant trait. The trait which cannot express itself is recessive trait. Recessive trait will express itself only in the homozygous condition. Gray or dark red color depends on the whether the trait is dominant or recessive. Blended expression of trait do not occur if the trait follows the Mendel law.
How does antibody immunity protect the body?
which if the items below would describe the genotype of an individual?
A.green eyes
B.hair color
C.GG
D.G1
C.GG describe the genotype of an individual.
What is an example genotype?An organism's genotype is a particular combination of alleles of a particular gene. For example, in the pea plant above, the possible genotypes of the flower color genes were red-red, red-white, and white-white. A phenotype is a physical symptom of a combination of alleles (genotype) in an organism.
In a broad sense, the term "genotype" refers to the genetic makeup of an organism. In other words, it describes the complete set of genes in an organism. In a narrower sense, the term can be used to refer to alleles or variants of genes carried by an organism.
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Which of the following denotes the divisions of the geologic time scale in correct order of decreasing lengths of time beginning with the longest time interval and ending with the shortest?a. eon, era, epoch, period b. era, period, epoch, eonc. eon, epoch, period, era d. eon, era, period, epoch
Answer:
d. eon, era, period, epoch
Explanation:
The geological time scale has been made so that the scientists can have a practical system about the classification of geological time, thus everything that has happened throughout it. The geological time unites have been defined in accordance with important events that have happened, thus marking their end or beginning. These events can be mass extinctions, catastrophes, climate patterns, domination of certain species etc. The longest of these time units is the eon, lasting for more than half a billion years, and up to 2 billion years. The era comes as the second longest time unit, lasting for several hundred million years. The period lasts for several tens of million years, and the epoch is the smallest unit, lasting for few million years, or several hundred thousand years.
The divisions of the geologic time scale, from longest to shortest, are eon, era, period, and epoch.
Explanation:The correct order of the divisions of the geologic time scale, from longest to shortest, is eon, era, period, and epoch. Therefore, the correct option is a. eon, era, epoch, period. The geologic time scale is a system that organizes Earth's history into different time intervals based on major geological and biological events.
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How does a fertilized egg become an organism made of many cells
The process by which a fertilized egg develops into an organism composed of many cells is known as embryogenesis.
What is Embryogenesis?
Embryogenesis is the process by which a fertilized egg, or zygote, develops into a multicellular organism through a series of highly coordinated and sequential developmental events.
Steps involve in embryogenesis:
1. Fertilization: Embryogenesis begins with fertilization, which occurs when a sperm cell successfully penetrates and fuses with an egg cell. This results in the formation of a diploid zygote.
2. Cleavage: After fertilization, the zygote undergoes a rapid series of cell divisions called cleavage. The cells produced during cleavage are called blastomeres.
3. Blastocyst Formation: The morula continues to divide and transform into a blastocyst.
4. Implantation: In many organisms, including humans, the blastocyst undergoes implantation into the uterine lining. The trophoblast cells interact with the maternal tissues, leading to attachment and embedding of the blastocyst into the uterine wall.
5. Gastrulation: It involves the reorganization of cells within the blastocyst, leading to the formation of three primary germ layers: the ectoderm, mesoderm, and endoderm.
6. Organogenesis: Organogenesis is the process by which the three primary germ layers differentiate into specific cell types and further organize to form organs and organ systems.
Thus, the process is known as Embryogenesis.
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Which of the following is MOST likely to affect the biodiversity of a park ecosystem?
A. Less rain than usual for several months
B. Ongoing pollution from a nearby factory
C. Park rangers plant a new type of tree
D. Disease wipes out an entire population
Answer:
C. Park rangers plant a new type of tree.
Explanation:
Biodiversity is a term used to describe the "variety" of plants and animals within the given ecosystem. To offset the current biodiversity, a species must be introduced or taken away. In this case, a "new type of tree" is introduced into the ecosystem, which would affect the ecosystem based on the land availability to native species, as well as what kind of things (diseases, etc) it brings to the ecosystem. If the species take over, animals must adapt to be able to live with the new plant.
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When oxygen is released as a result of photosynthesis?
Oxygen is released in photosynthesis during the light-dependent reactions. In this phase, light energy absorbed by chlorophyll is used to split water molecules into hydrogen ions, electrons, and oxygen. The oxygen atoms are then combined into O2 and released into the atmosphere.
Explanation:Photosynthesis is a process that occurs in plants, algae, and some bacteria. These organisms convert light energy, usually from the sun, into chemical energy in the form of glucose (or sugar). In the process of photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) and convert it into glucose and oxygen. The oxygen is then released into the atmosphere.
The main process where oxygen is released during photosynthesis happens during the light-dependent reactions. These reactions take place within the chloroplasts (especially within the thylakoid membranes) in the plant cells. Here, light energy absorbed by chlorophyll and other photosynthetic pigments is used to 'split' water molecules into hydrogen ions, electrons, and oxygen. This process is known as photolysis of water. The released oxygen atoms from the water molecules are then combined into O2, which is the molecular form of oxygen that is released into the atmosphere.
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Baby olivia is 2 months old and sleeps 20 hours per day. about _____ in 20 infants sleep more than 19 hours each day.
Answer:
Out of 7 ,10 ,5 and 1 answer is 1
Explanation:
Where does the esophagus lead to in a frog?
The tube that connects the mouth to the stomach.
The esophagus in a frog connects the pharynx to the stomach, enabling the passage of food. It plays a crucial role in directing ingested materials to the stomach for further digestion.
The esophagus in a frog, much like in humans, is a crucial part of the digestive system. Here is a detailed explanation:
Esophagus: The frog's esophagus is a tubular structure that connects the pharynx to the stomach.Pathway: Food, after being swallowed, travels from the mouth through the esophagus.Function: The primary function of the esophagus is to facilitate the passage of food to the stomach for digestion.Destination: The esophagus leads directly into the frog's stomach, where the digestion process continues.In summary, the esophagus is a muscular tube directing food from the pharynx to the stomach, ensuring the food correctly enters the digestive system.
World class speed skaters can skate a 3,000-m course in about 4 minutes. What is their average speed for this course.
A. 12.5m/s
B. 1.33m/s
C. 13.3m/s
D. 1.25m/s
A. 12.5 m/s.
The average speed is defined as the relationship between the displacement made by a body and the total time it took to perform it.
The formula that will allow you to calculate the average speed is:
v = d/t, where d is the traveled distance and t the time it took to travel the distance.
We hace to convert 4 minutes to second:
(60 s/1 min)*(4 min) = 240 s
So, the average speed is:
v = 3000 m/240 s
v = 12.5 m/s
Answer:
The answer is A
Explanation: